| do std clinics correctly diagnose stds? an assessment of std management in hefei, china. | the main purposes of the study were to assess the accuracy of laboratory testing and the diagnosis by physicians in sexually transmitted disease (std) clinics in hefei, china. among 347 men complaining of urethral discharge or dysuria, 240 tested positive at the national centre for either neisseria gonorrhoeae or chlamydia trachomatis, 310 tested positive according to the clinic laboratories, and 347 were diagnosed by the physicians. for chlamydia, the sensitivity and positive predictive value ( ... | 2003 | 14596769 |
| prevalence of sexually transmitted infections among long-distance truck drivers in tongling, china. | little is known about sexually transmitted infections (stis), including hiv, among truck drivers in china. a cross-sectional study was conducted among truck drivers in tongling of anhui province. a total of 550 truck drivers were interviewed with a structured questionnaire, and blood samples were collected and tested for hiv, syphilis, and herpes simplex virus 2 (hsv-2), and urine specimens for neisseria gonorrhoeae and chlamydia trachomatis. prevalence was 10.6% for c. trachomatis and 8.1% for ... | 2006 | 16643679 |